Fig. 3From: Invasive cystic hypersecretory carcinoma of the breast: a rare variant of breast cancer: a case report and review of the literatureLymph node metastases. (a) Cystic areas in the lymph node metastases (H&E, × 400). (b) Pleomorphic tumor giant cells in the lymph node metastases (H&E, × 400). (c) Negative reaction for Ki67 in pleomorphic tumor giant cells (Immunostaining, × 100). (d) Positive reaction for Her-2 in pleomorphic tumor giant cells (Immunostaining, × 100)Back to article page